/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package com.guchenbo.example.netty;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;

/**
 * Simplistic telnet client.
 */
public final class SaslNioClient {
    protected static final Logger log = LoggerFactory.getLogger(SaslNioClient.class);
    static final boolean SSL = System.getProperty("ssl") != null;
    static final String HOST = System.getProperty("host", "127.0.0.1");
    static final int PORT = 8024;

    public static void main(String[] args) throws Exception {
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap b = new Bootstrap();
            b.group(group).channel(NioSocketChannel.class).handler(new SaslClientInitializer());

            // Start the connection attempt.
            Channel ch = b.connect(HOST, PORT).sync().channel();


            BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
            for (; ; ) {
                String line = in.readLine();
                if (line == null) {
                    break;
                }
                log.info("client say hello");
                SaslMessage message = new SaslMessage();
                message.setMsg("request");
                message.setChallenge("hello".getBytes(StandardCharsets.UTF_8));
//                ch.write(message);
//                ch.flush();
                ChannelFuture future = ch.writeAndFlush(message);
//                future.sync();
//                ChannelFuture future = channel.writeAndFlush("Hello, server!");
                future.addListener((ChannelFutureListener) future1 -> {
                    if (future1.isSuccess()) {
                        // 发送成功
                        log.info("发送成功");
                    } else {
                        // 发送失败
                        log.info("发送失败");
                        future1.cause().printStackTrace();
                    }
                });

                //                if (future.isSuccess()) {
                // 发送成功
                //                } else {
                // 发送失败
//                }

                // If user typed the 'bye' command, wait until the server closes
                // the connection.
                if ("bye".equals(line.toLowerCase())) {
                    ch.closeFuture().sync();
                    break;
                }
            }
        } finally {
            group.shutdownGracefully();
        }
    }
}
